# All files / src/chap08 BookFormPage.js

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     // import { Form } from 'react-router-dom';

    // export default function BookFormPage() {
    //   return (
    //   <Form method="POST" noValidate>
    //     <div>
    //       <label htmlFor="title">제목:</label><br/>
    //       <input id="title" name="title" type="text" size="20" />
    //     </div>
    //     <div>
    //       <label htmlFor="price">가격:</label><br/>
    //       <input id="price" name="price" type="number" />원
    //     </div>
    //     <div>
    //       <label htmlFor="published">출간일:</label><br/>
    //       <input id="published" name="published" type="date" />
    //     </div>
    //     <div>
    //       <button type="submit">등록하기</button>
    //     </div>
    //   </Form>
    //   );
    // }

    // Code 8-4-16
    import { Form, useActionData } from 'react-router-dom';

    export default function BookFormPage() {
      const errors = useActionData();

      return (
      <Form method="POST" noValidate>
        <ul>
        {errors?.map(msg => <li key={msg}>{msg}</li>)}
        </ul>
        <div>
          <label htmlFor="title">제목:</label><br/>
          <input id="title" name="title" type="text" size="20" />
        </div>
        <div>
          <label htmlFor="price">가격:</label><br/>
          <input id="price" name="price" type="number" />원
        </div>
        <div>
          <label htmlFor="published">출간일:</label><br/>
          <input id="published" name="published" type="date" />
        </div>
        <div>
          <button type="submit">등록하기</button>
        </div>
      </Form>
      );
    }